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uworld wrong Flashcards

1
Q

what’s the histo for MYXOMA

A

scattered cells w/in a mucopolysaccharide stroma. abnormal BV hemorrhaging

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2
Q

what valve does MYXOMA usually obstruct

A

MITRAL(mid-diastolic murmur

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3
Q

Nonbacterial thrombotic endorcarditis involves the deposition of what

A

platelets/fibrin (occurs in SLE/malignancy

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4
Q

incomplete fusion of what causes a PFO

A

atrial septum primium and secundum

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5
Q

what causes an ASD

A

aplasia of atrial septum secundum

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6
Q

what arteries doe the common iliac give rise to

A

external and internal iliac

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7
Q

what are the branches of external iliac

A

inf. epigastric & deep circumflex(supply lower ab)

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8
Q

what are the branches of internal iliac

A

superior/inf gluteal, obturator

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9
Q

when do you want to reduce baroreceptor firing

A

HYPOTENSION/LOW VOLUME

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10
Q

if you REDUCE baroreceptor firing what should happen to contractility

A

INCREASE

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11
Q

what do we consider bAROreceptor

A

pAROsympa

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12
Q

distended jugular vein equals to what pressure

A

CVP(measures vol in the RA) increase in RT heart failure

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13
Q

MV is associated w what type of tissue disorder

A

Connective(marfan, ehlers, osteogenis

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14
Q

Polyarthritis Nodosa histo

A

fibrinoid degeneration of vessel wall w/narrowing transmurral segmental

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15
Q

WEGNER description

A

Necrotizing arteritis w/epitheliod histiocytes

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16
Q

Churg-Strauss description

A

Necrotizing granuloma w/ EOSINOPHILS

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17
Q

what type of collagen is seen in a mature scar from MI

A

Type 1 Skin, bones, tendons, ligaments, cornea, dentin

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18
Q

what’s EF in HOCM preserve/increase/decrease

A

PRESERVE due to intact LV contractility

19
Q

what will you see ina coronary angio w/ someone who has Vasospasm(printzmal angina)

A

NO OBSTRUCTIVE lesions. vasospam is due to hyperractivity of vascular SM

20
Q

what are two ways to cause apoptosis

A

ubiquitton proteosome/ Aphagy(vaculoes made w/in a cell

21
Q

what’s the most common cause of budd chiari

A

PCV due to increase in viscosity

22
Q

Hypoxemia

A

low partial pressure of O2 in blood(PaO2 <60 & SaO2 <90

23
Q

FiO2-PAO2-PaO2-SaO2 What can effect each

A

FiO2 (high alt not enough O2)

PAO2( n-ething that increase PACO2(COPD, HYPOVENT)

24
Q

what is the purpose of PAO2

A

the pressure to sqz blood across capillaries to PaO2

25
Q

what can effect PaO2

A

if the capillaries in the alveolar air sac are thickened (interstitial fibrosis of lung

26
Q

what’s the role of Hb

A

to carry O2 to tissues

27
Q

what is Anemia

A

decrease in RBC MASS so PaO2/SaO2=NORMAL

28
Q

what is methemoglobenia

A

Iron oxidized to Fe+3

caused by oxidant stressors(sulfa nitrate)

29
Q

What’s PAO2/SaO2 in methehemoglobenia

A

PAO2=NORMAL

SaO2= DECREASE less Fe+2 around to bind trt: w/methylene blue bring bk to Fe+2

30
Q

what happens to PT/PTT/BT/PLT count in HUS

A

PT/PTT=Normal BT=increase PLT=decrease

31
Q

What’s Serum Ca+2/uric acid, Urine Ca+2, pH, Cystine in Ca+2 oxalate stones

A

Serum Ca+2/ Uric acid=NORMAL
URINE Ca+2=Increase
URINE pH= decrease
Urine Cystine=NORMAL

32
Q

What’s Serum Ca+2/uric acid, Urine Ca+2, pH, Cystine in Ca+2 phosphate stones

A

Serum Ca+2= INCREASE Uric acid=INCREASE
URINE Ca+2=Increase
URINE pH= INCREASE
Urine Cystine=NORMAL

33
Q

what will you see in histo for lactase def

A

Normal epi( tall vili w/ focal collections of goblet cells crypts of lieberkuhn) simple columnar epi

34
Q

Duod epi w/ dense staining of chromagin A describe what GI porblem

A

IBS

35
Q

what causes liver failure in overdose of acetominephen

A

N-acetyl-p-benzoquinoeimine(NAPQI) build up

36
Q

what’s the most common twin prego

A

Monochorionic-diamniotic (cleaves day 4-8)monozygotic

37
Q

what is monochorionic

A

a shared placenta(increase risk for twin twin tranfusion syndrome

38
Q

what is diamniotic

A

2 sacs

39
Q

DOC for parkinsonian like symptoms

A

Benztropine/trihexyphnidyl(anti-musc) for ELDERLY amantadine(increase dopa)

40
Q

what’s the lab for hyperosmolar hyperglycemic state

A

glucose>600
osmolality >320
Na+ low HCO3>18

41
Q

what is transformation/what bacteria can do it

A

bacteria tk up naked DNA from lysis bacteria & mk it there own & express new genes. (s.pneumo, H.influ b, Neisseria

42
Q

what kind of mutation do you see in achandroplasia

A

gain of FX of the fibroblas growth facto receptor 3 gene

43
Q

restrictive myopathy can cause what type of heart problem

A

DIALATED CARDIOMYOPATHY due to thransthyretin misfolding & producing amyloid in the heart

wrong (26 decks)

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